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Coating and slitting production line

A production line and spraying machine technology, applied in coating, spray booth, spray device and other directions, can solve the problems of reduced production efficiency, low production yield, and low improvement of diaphragm modification performance, so as to reduce waste of edge material and improve finished products. rate effect

Inactive Publication Date: 2020-05-08
JIANGSU HORIZON NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing diaphragm spraying production line lacks a diaphragm pretreatment stage, the modification performance of the diaphragm is not high, and the risk of late deformation of the coating film is high; the cutting and spraying are separated, and there is circulation in the middle, which reduces production efficiency; and most of them are one-time coating. Single-sided coating with narrow width, low coating efficiency and low production yield

Method used

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  • Coating and slitting production line
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Embodiment Construction

[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with specific embodiments.

[0023] The present invention proposes a diaphragm spraying slitting production line, the specific scheme is as follows:

[0024] In terms of production line structure, it includes unwinding mechanism 1, diaphragm pretreatment mechanism 2, spraying mechanism 3, drying mechanism 4, and cutting mechanism 5.

[0025] 1. The unwinding mechanism 1 includes a 360° turning frame (not shown), a cutting device (not shown), a first roller (not shown), a static elimination device (not shown), and a first tension control system 1 -2. The first arc-shaped flattening roller 1-1 can change rolls automatically. Among them, the cutting device can use flying knife, sawtooth chopping knife, electric heating wire; the material of the first roller can be carbon fiber, carbon fiber...

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Abstract

The invention relates to a coating and slitting production line. The coating and slitting production line comprises an unwinding mechanism, a diaphragm pretreatment mechanism, a coating mechanism, a drying mechanism and a slitting mechanism. According to the coating and slitting production line, a base film can be pretreated, the internal stress of the base film is released, the appearance of thebase film is improved, later deformation of a diaphragm is reduced, and coating effects can be greatly improved; furthermore, two surfaces can be simultaneously coated and dried, so that the mutual influence on the performance of the two coatings caused by separate coating is avoided; in addition, wide-width coating can be achieved, the base film can be directly cut into specifications required bycustomers after coating, leftover material waste is reduced, and the yield is remarkably increased; and finally, single-face or double-face coating can be achieved, thereby meeting various product requirements of the customers.

Description

technical field [0001] The invention belongs to the technical field of lithium / ion batteries, and in particular relates to a spraying and cutting production line. Background technique [0002] The lithium-ion battery separator is one of the four major components of the lithium-ion battery, and its performance directly affects the safety and electrical performance of the battery. The coating modification of the diaphragm is a method to greatly improve the performance of the diaphragm. Among them, the modification of the spraying binder can improve the bonding performance between the diaphragm and the pole piece, maintain the dimensional stability of the lithium-ion battery during charging and discharging, and reduce the interlayer gap. The production of lithium batteries can greatly improve the electrical properties such as safety and cycle performance of lithium batteries. However, the existing diaphragm spraying production line lacks a diaphragm pretreatment stage, the mod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H16/00B65H23/34B65H20/02B65H26/04B65H18/08B05B16/20B05D3/02B05B13/02H01M2/14H01M10/0525H05F3/06
CPCB05B13/0221B05D3/0218B05D3/0254B65H16/00B65H18/08B65H20/02B65H23/34B65H26/04B65H2701/1133B05B16/20H01M10/0525H05F3/06H01M50/403Y02E60/10
Inventor 张立斌李正林翁星星毛会庆陈辉
Owner JIANGSU HORIZON NEW ENERGY TECH CO LTD
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